baber/WOPTO huggingface dataset:
Patent GB-251120-A (GB)
Title: Improvements in or relating to toasting forks and like appliances
IPC: A47J37/06
Filed: 1925-05-28
Abstract: 251,120. McLaughlin, J. May 28, 1925. Toasting-apparatus.-In a reversible toasting- fork of the type comprising a twisted wire handle formed with loops which support a swinging pronged slice holder, the holder 5 is provided with a loop 8 which is held when the food is impaled upon, or removed from the prongs 6. The loop 8 may be substantially rectilinear as shown in Fig. 1, or it may be in a continuous curve. A finger ring 2 is provided.
Patent GB-676748-A (GB)
Title: Mechanism for cutting blocks from a strip of plastic material, e.g. ice cream, and transferring the cut blocks
Inventor: ROSE ALFRED GERMAN
IPC: A23G9/28
Filed: 1949-05-26
Abstract: 676,748. Cutting blocks from a strip of ice-cream &c. ROSE BROS. (GAINSBOROUGH), Ltd. May 25, 1950 [May 26, 1949], No. 14062/49. Class 87(ii) Blocks 13 are cut from a strip 11 by opposed knives 14 operated by a slide 16. After cutting, the block is lowered on a bifurcated support 19 on to a transfer member 21. The member 21 is bifurcated for the passage of the support 19. The strip 11 is supported during transfer of the cut block by the knives. The block is moved on the member 21 along a slideway 26 to be picked up by spikes 29 operating as described in Specification 676,744. As the block is about to be removed from the member 21, the slideway 26 is dipped slightly, to prevent any sliding between the block and the surface of the support 21. During the cutting, the support 19 is lowered slightly to allow for the thickness of the knives.
Patent GB-543865-A (GB)
Title: Improvements in or relating to a plant for the treatment of water supplies for domestic use, sewage and the like, and the manufacture of fertilisers
IPC: C02F3/02
Filed: 1940-09-14
Abstract: 543,865. Treating sewage; filters; manures. COO MBS, J. A. Sept. 14, 1940, No. 14201. [Classes 46 and 111] A sewage treatment and compost making plant comprises a tank for aeration or other treatment of the crude sewage, a compost bed for the fermentation of refuse, means for spraying sludge or effluent from the tank over the compost bed, and a filter bed with means for spraying thereover effluent from the tank, with or without activated sludge. With the plant shown the crude sewage is passed successively through tanks 16, 18, as described in Specification 514, 627. Sludge deposited in sumps 17 in the tank 16 is passed by ejectors 47 and a pipe 45 to a composting bed 23. Sludge collecting in sumps 19 in the tank 18 is passed by ejectors 20 to a chamber 21 where it is reactivated by air under pressure and from which it is passed to composting beds 23, 24, or to filter beds 35, 36. Effluent from the tank 18 overflows into a channel 22 and passes to the composting or filter beds. The composting beds 23, 24 may be constructed and operated as described in Specifications 496,547, 521,894, and 521,895, use being made of a mechanical labourer, as described in Specification 521,939, [Group XXX]. Layers of garbage or dustbin refuse, sewage sludge, and prevously prepared dry compost are mixed and aerated by means of hot air on the bed 23, and the mixed materials are passed to the bed 24, where agitation and aeration are continued till fermentation is completed. Reactivated sludge from the chamber 21 may be sprayed on the materials on the beds 23, 24. The filter beds 35, 36 may be constructed and operated as described in Specification 542,008. The effluent from the tank 18 is passed successively through the beds, over which it and reactivated sludge from the chambers 21 are separately sprayed. Air is passed through both beds, either upwardly or downwardly. Colloidal matter is flocculated in the filter 35 and subjected to nitrification in the filter 36. The beds are separated by a passage-way 34 which may contain a trough for the supply of liquid to the beds and valve for controlling the flow of air and liquid. A reserve bed 60 which can serve either as a composting bed or a filter is provided.
Patent GB-708941-A (GB)
Title: Improvements relating to electric circuit breakers
Inventor: CHRISTIE JOHN
IPC: H01H33/57
Filed: 1951-06-15
Abstract: 708,941. Switchgear structures. REYROLLE & CO., Ltd., A. May 28, 1952 [June 15, 1951], No. 14236/51. Class 38(5) In a cubicle or other walled enclosure B, a live-tank low-oil-conten type circuit-breaker A has an exhaust nozzle D directed into an insulating venting passage leading to the outside of the enclo sure, the nozzle being electrically separated from the passage by an annular air gap. The pas sage may comprise a ceramic pipe E which i: adjustably carried by a metal exhaust elbow F so that its position relatively to the nozzle can be varied. The outlet end of the elbow may be protected by a hood G and may be normally closed by a gravity-loaded pivoted flap H. It is stated that the air gap provides insulation between the pipe and nozzle should the interior of the pipe become contaminated by oil, dust and soot. Also, that cool air would be drawn into the pipe from the enclosure to assist in deionizing the exhaust gases and reduce contamination. The exhaust passage may be upwardly or downwardly inclined.
Patent GB-937924-A (GB)
Title: Improvements in or relating to temperature responsive electric switches
IPC: H01H37/52
Filed: 1962-04-12
Abstract: 937,924. Thermal switches. MINNEAPOLISHONEYWELL REGULATOR CO. April 12, 1962 [April 12, 1961], No. 14285/62. Class 38 (5). A thermostat comprises two parallel bimetals 30, 31, mounted at one end on a base 10 and with their other ends joined by a switchactuating member 32 which operates contacts 53, 54 and 52, 55 upon flexing of the bimetals toward and away from the base, and compression springs 44 applying an endwise force to the bimetals to cause them to operate with a snap action. Member 32 carries an insulator bar 50 having a contact carrying arm 51 with the movable contacts 52, 53 thereon. A support member 12 for the bimetals 30, 31 carries a calibration screw 15 and is biased anticlockwise, Fig. 2, by springs 20, 21. The operating point of the thermostat is adjusted by a lever 23, which moves a cam or wedge 22 on which the screw 15 bears through a thin metal sheet (Figs. 3, 4, not shown), such that the mounted ends of bimetals 30, 31 are moved toward or away from base 10. A screw 41 adjusts the compressive force of springs 44. A resistance 71 is included in the switch circuit for heatanticipation purposes.
Patent GB-725044-A (GB)
Title: Improvements relating to shuttered electrical socket outlets
IPC: H01R13/453
Filed: 1953-05-21
Abstract: 725,044. Two-part couplings combined with switches. KURKJIAN, Y. H. May 21, 1953, No. 14383/53. Class 38 (1). A socket-outlet comprises an insulating housing 10 containing a pair of opposed spring blades 13, 14 having contact portions 17 ...20 at their ends, each pair 17, 19 and 18, 20 being adapted to engage the pins of a plug. Above the contacts 17, 19 is an insulating guard 23 pivotally mounted on a stud 21 and having pinentry-apertures 25, 26 and a collar 24 extending rearwardly between the contacts. Plug pins are entered in the openings 25, 26 with the guard in the position shown in Fig. 1 and lie along flats 30 on collar 24. The plug is then rotated 90 degrees so that the pins are clamped between contacts 17, 19 and collar 24, the contact pressure being sufficient to prevent accidental withdrawal of the plug. A similar guard 31 is provided over contacts 18, 20. The pins may be positively locked in the contact-engaging position by shoulders 41, Fig. 7, on the contacts which engage recesses 40 in the pins. Alternatively punched nipples on the contacts may fit into apertures in the pins. Return springs 47 may be provided for the guards.
Patent GB-1260183-A (GB)
Title: Differential-pressure indicator devices
IPC: B60T17/22
Filed: 1969-03-19
Abstract: 1,260,183. Brake indicators. ALFRED TEVES G.m.b.H. 19 March, 1969 [28 March, 1968], No. 14392/69. Headings F2E and F2F. [Also in Division H1] A differential-pressure indicator device comprises a cylinder 20 containing a piston 21, loading means tending to retain the piston in an equilibrium position, means for applying the pressures to be compared to opposite ends of the cylinder so that a predetermined pressure difference will cause the piston to move from its equilibrium position and displace the loading means, indicator means responsive to such displacement to give an indication of a particular condition and means for retaining the piston in the position into which it has been moved so that the loading means is retained in its displaced position and the indication is maintained after the cessation of said pressure difference. The loading means comprises a V-shaped groove 22 around the piston and which is engaged by a ball 23 loaded by a spring 24 acting on a ballsupporting member 19. As shown, a tandem master cylinder 13 has pressure and floating pistons 14, 12, the latter being acted on by a spring 16, and a stroke limiting device 11 wherein the initial distance between the pistons is determined by a spring 15 stronger than the spring 16. The piston 21 moves under the action of the pressures in the chambers 17, 18 and the member 19 is in contact with the actuating member 29 of an electrical switch. Upon malfunctioning of a brake circuit connected to, e.g., chamber 18, the piston is mainly subjected to the pressure in the chamber 17 and moves to the left as seen in the Figure to close the switch, the ball 23 becoming trapped in the groove 28; release of the brake allows the pressure difference between the chambers 17, 18 to decrease and piston 12 is returned by spring 16 to the initial position thereof, the piston 21 remaining in the position into which it was forced and a warning signal, via the electrical switch, continuing to operate. Return of the piston 21 to its initial position is carried out by generating a sufficiently high pressure in the chamber 18 to overcome the force of the spring 24 and to force the ball 23 from the groove 28. The electrical switch may be opened by movement of the piston 21. Reference has been directed by the Comptroller to Specification 1,152,054.
Patent GB-278774-A (GB)
Title: Improvements in rotary chemical furnaces
IPC: F27B7/00
Filed: 1926-06-08
Abstract: 278,774. Tocco, L., and Landi, M. June 8, 1926. Resistance furnaces. - A continuously-operating rotary furnace heated by internal resistance elements is divided by partitions into a number of reaction chambers, and means are provided by which materials, can be automatically introduced and withdrawn, and gases &c. resulting from the reactions can be removed. In the plant shown, which is more particularly adapted for the treatment of ores containing lead and zinc, the material passes in series through three rotary drums I, O, Q, of which the first is divided by partitions 27 into three zones Ir, Iz, Iy, while the second and third are separated by a fixed water-cooled head 80. In the first zone Ir the ore is dried at a temperature of about 150‹ C., in the second Iz the lead sulphide is converted to oxide at a temperature of 380‹ C. by air supplied through the pipe 42, and in the third the oxide is reduced by carbon supplied by a screw conveyer 35 and delivered between the second and third zones through a passage in the partition. The third zone is heated to a temperature of about 500‹ C. by resistances 43, which are embedded in zirconia in grooves in the furnace shell and are supplied with current by slip-rings and brushes. The molten lead is withdrawn through a pipe 60, and the remainder of the charge passes through a water-cooled magnetic separator 64 to the chamber 10, where the zinc sulphide is converted to oxide at a temperature of about 600‹ C. In this zone the surplus heat is utilized to generate steam in a stationary boiler O<1>. The oxide then passes through a rotary chamber 84, in which it is mixed with carbon supplied through a pipe 86, and into the chamber where a temperature of 1400‹ C. is maintained by electric resistances. Here the zinc is reduced, and the vapourized metal is reoxidized by air supplied through a passage 92 in the fixed head 80. The oxide is withdrawn through the conduit 103, while the solid residue is discharged through the passage 100 on to the conveyer 101. The ore is supplied to the zone Ir through the shoot 12 and the charging apparatus comprises a hopper 1, crusher 2, and rotary valves 4, 10 driven through gearing from the furnace. Gases are withdrawn from the zones Ir, Iy and O through pipes 22, 56 and 76 respectively.
Patent GB-769085-A (GB)
Title: Heat exchanger of the plate-pile type
IPC: F28F3/08
Filed: 1955-05-19
Abstract: 769,085. Plate heat-exchangers. AKTIEBOLAGET ROSENBLADS PATENTER. May 19, 1955' [Aug. 30, 1954], No. 14464/55. Class 64(3). Relates to heat exchangers comprising a plurality of heat transferring plates 1 individually suspended from a carrier bar 3 by means of catches 4, one for each plate, each catch extending across the top of the bar and being attached at its two ends to the corresponding plate. According to the invention both ends of the catch are provided with two resilient separable sheet metal legs 7a, 7b, 8a, 8b which are adapted to grip and engage an edge portion of the plate between their opposed flat faces, each catch end being releasable from th plate only by spreading apart the resilient legs as shown for example in Fig. 3. Each catch 4 may comprise two strips 5a, 5b, of sheet metal riveted or spot welded together in the manner shown in Figs. 2 and 3, the legs 7a, 7b, 8a, 8b being formed by the free ends of the strips. The strip 5b is formed near its end with bosses 9a, 9b, which engage corresponding holes in the plate and also, if desired, in the other strip 5a. The boss 9b may be up-set as at 12 so that the catch is releasable only from one end with the boss 9b acting as a pivot. Alternatively the bosses may be formed in the plate 1 as shown in Fig. 5. The catch may be U-shaped to embrace the bar in which case the slot 2 normally provided in the plate may be omitted (Fig. 8 not shown). Instead of employing two strips 5a, 5b, the catch may be formed by folding a single metal strip suitably shaped (Figs. 6 and 7 not shown).
Patent GB-1037314-A (GB)
Title: An improved profile cutter or hob
IPC: B23C5/04
Filed: 1963-04-11
Abstract: 1,037,314. Milling-cutters. CARL HURTH MASCHINEN - UND ZAHNRADFABRIK. April 11, 1963 [May 24, 1962], No. 14640/63. Heading B3K. A profile milling cutter or hob comprises peripherally-relieved teeth and gashes which, at approximately the innermost point of the cutting-edge, essentially extend over the full width of the cutter, wherein the teeth, measured in a peripheral direction at the innermost point of the cutting-edge, have an arc length of not more than #0À50y<SP>2</SP>+12À25 mms. and the gashes have an arc length of not more than 0À5+ #0À3y<SP>2À1</SP>+12À25 mms., where y is the radial difference between the innermost point of the cutting edge and the outside diameter of the cutter, i.e. the height of the face edge. In conventional cutters, the gashes are initially too small to allow correct chip flow, whereas after successively grinding the tooth faces to their usable limits, the gashes are too large. The relieved surface of a tooth to the left of a line 16-16 is convex and is concave to the right. The relief angle 15 may be over 8 degrees.
Patent GB-260186-A (GB)
Title: Improved process for reducing nitro-compounds
IPC: C07C209/36
Filed: 1926-06-10
Abstract: 260,186. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). June 10, 1926. Catalytic agents, preparation and treatment of; amino-compounds, catalytic production of from nitro-compounds.-Amino compounds are obtained by passing a mixture of hydrogen and the vapour of the corresponding nitro compound over silicic acid gel which has been impregnated with a heavy metal, particularly copper, iron, or nickel, or an oxide or a salt thereof; the hydrogen may be present in excess. According to one example, aniline is obtained by passing a mixture of hydrogen and nitrobenzene vapour at about 200‹ C. over silicic acid gel on which a small amount of a heavy metal hydroxide, such as copper hydroxide, has been precipitated. Other examples describe the preparation in similar fashion of the toluidines, 3-aminopyridine, and methylamine. When treating nitro compounds boiling at a high temperature, such as a-nitronaphthalene, the process may be carried out under reduced pressure.
Patent GB-1185918-A (GB)
Title: Bifunctional Carboxylic Acid Halides and a Process for their Production
Inventor: ZUMACH GERHARD
IPC: C07C271/02
Filed: 1967-03-31
Abstract: 1,185,918. Bio-halogenocarbonylamines; 3,5- dioxa, 1,2,4-dithiazolidines. FARBENFABRIKEN BAYER A.G. 31 March, 1967 [1 April, 1966], No. 14745/67. Heading C2C. Novel bis-halogenocarbonylamines of the formula R-N-(COX) 2 , wherein R is an alkyl or aralkyl radical which is optionally halogensubstituted or an optionally substituted aryl radical and X is chlorine or bromine, are prepared by reacting the appropriate 3,5-dioxo- 1,2,4-dithiazolidines with a halogen or a halogen donor at 0‹ to 100‹ C. The 3,5-dioxo-1,2,4-dithiazolidines used as starting materials may be obtained by reacting N-substituted formamides, R-NH-CHO, with chlorocarbonyl sulphene chloride, as described in Specification 1,136,950.
Patent GB-921151-A (GB)
Title: An adaptor for camera reproduction systems
Inventor: BOLTON ALAN DUMENIL
IPC: G03B27/46
Filed: 1958-05-08
Abstract: 921,151. Reflectors in photographic cameras. GADE ENGRAVING CO. Ltd. Aug. 10, 1959 [May 8, 1958], No. 14748/58. Classes 97 (1) and 98 (1). An adapter for use in producing laterallyreversed negatives in a camera comprises a frame to be fitted between the camera's body and bellows in lightproof manner, a reflecting surface mounted in the frame and a holder for receiving a length of photo-sensitive material. In the embodiment shown, light is reflected from the mirror 15 on to photo-sensitive paper which is fed from a roll 37 between rollers 38, 38A on to a supporting plate 21 against which it is held by means of a vacuum system 23-26. The paper is guided over plate 21 by fixed guides 27 and a movable guide 28 comprising strips 29 carried by supporting arms 20 rotatable about an axis 31 is provided for gripping and removing the paper after exposure. A guillotine 43 is provided and is operated by lever 44.
Patent GB-127173-A (GB)
Title: Improvements in or relating to Date Indicators.
Inventor: HANSON JOHN WILLIAM
IPC: G09D3/02
Filed: 1918-09-11
Abstract: 127,173. Hanson, J. W. Sept. 11, 1918. Boxes made from special blanks; specially-shaped boxes; boxes for enclosing articles having parts extending out through box.-A box or pocket for date-indicator cards is made of a triangular sheet A of metal; paper, or other suitable material, which is folded along the double lines C to form the back thereof as at A<4>, and the front is notched at A<2> or the apex cut off so as to expose the day number of the date cards. A support may be provided to hold the box or pocket at the top corner.
Patent GB-534455-A (GB)
Title: Improvements in and relating to apparatus for the projection of light
IPC: F21V7/00
Filed: 1939-05-17
Abstract: 534,455. Searchlights; vehicle &c. lamps. MARTIN, H. May 17, 1939, No. 14780. [Classes 75 (ii) and 75 (iv)] A light projection apparatus comprises a frontal ellipsoidal reflector truncated at or forward of the focus at which is set the light source, a plane mirror disposed at or near the larger end of the reflector and set an angle to deflect the beam, and an objective lens in ariel alignment with the deflected beam. Fig. 1 shows a searchlight comprising opposite coaxial truncated ellipsoidal reflectors 3 having a light source 2 at their common focus, inclined plane mirrors 10, and objective lenses 15 producing parallel beams, the mirror casings 9 and lens casings 14 being angularly adjustable in seatings 7 on spindles 11 carrying counterweights 18 and being clamped in their adjusted positions by stop pins 19 movable in slotted guides 21. The light source may be a carbon arc, preferably fed with alternating current, and the gases and vapours evolved may be drawn off by a fan through a duct 25. Alternatively the light source may be a mercury vapour arc. The base plate 1 may be mounted so as to be rotatable about a central vertical axis and the inclination of the beams may be adjustable by a control spindle operating the spindles 11 through worm and bevel gearing. The form of the beams may be defined by apertured plates or iris diaphragms and its colour by plates or, stencils at the aperture. Fig. 4 shows a projector suitable for use as a theatre spotlight, lantern slide projector, reading lamp, vehicle lamp, or for illuminating pictures, advertisements &c. It comprises ellipsoidal and hemispherical reflectors 38, 42 having a common focus and centre respectively, a central condensing lens 47, and an inclined plane mirror 48 deflecting the projecting beam to pass through an objective lens 52 mounted in a tube 51 axially adjustable in a cylindrical extension 50 of the mirror casing 49. The reflectors 38, 42 are mounted in a casing 37 formed with an annular rib or projections 45 for the passage of forked pins 46 supporting the lens 47. A plate 55 having a fixed or adjustable aperture may be provided at the rear of the tube 51. Specifications 267,171, 274,202, 328,552, [all in Class 75 (iv)], 340,522 and 360,910 are referred to in the Provisional Specification.
Patent GB-850240-A (GB)
Title: Purification of novobiocin and dihydronovobiocin
IPC: C07H17/075
Filed: 1958-05-09
Abstract: Novobiocin and dihydronovobiocin are recovered from solutions containing it, e.g. a fermentation broth and especially the whole fermentation broth by adsorbing the antibiotic upon a particulate, anion exchange resin especially a strongly basic, polymeric, nitrogenous anion-exchange resin and eluting the antibiotic from the separated resin.  The resins are preferably anion exchange resins having quaternary ammonium groups attached to a styrene divinyl benzene matrix, e.g. "Dowex" 1-X2, 1-X4 and 2-X4, "Amberlite" IRA-400, IRA-401, IRA411 and XE-98 ("Amberlite" is Registered Trade Mark) and "Duolite" A40, A-101 and A-102.  The adsorption may be batch or column.  In the case of the whole fermentation broth, the resin is added to the unfiltered broth and the resin with adsorbed antibiotic removed by screening at 10 to 200 mesh, particularly by means of a vibrating screen, which allows the fermentation solids to pass.  The anion exchange resin is of 10 to 200 mesh and preferably 35 to 100 mesh.  Elution is by means of an aqueous solution containing an electrolyte preferably in an organic solvent for the antibiotic.  Aqueous solutions of hydrochloric or acetic acid mixed with a water-miscible alkanol or ketone are prefered.  The eluate contains 70 to 98% organic solvent and 30 to 2% aqueous phase which contains 1 to 10% w/v acid, e.g. a solution containing 16% conc. hydrochloric acid and 84 per cent. methanol.  Further purification is obtained by treating the eluate with acid washed alumina and then adding methanolic acetic acid to crystallise novobiocin acid which may be converted to any desired salt.  Specification 821,819 is referred to.